Thread: D2 TD5 losing water somewhere!

this may be no help at all, but in my disco td5, i have a small leak from the fuel cooler. fluid drips out onto the area above the right side engine mount. although i only lose a very small amount of coolant over a long period.

Originally Posted by eckolsim

My D2 has been slowly losing water for a while. I thought I traced it a while ago with the water pump. Obviously not so. Then later on I ran out of water on a drive across town and when topping it up and bleeding the system, lost the threaded insert in the top hose into the water system (that was a tow home to pull it apart and find the missing bits). Now after having installed a new top hose I find myself still slowly losing water.

The trouble really is that I haven't been driving the car, my wife has. It never gets driven far and therefore she doesn't notice the low water signs. (No I don't have a low water detector installed).

The car still runs brilliantly and shows no signs of engine trouble. The water system, when up to temp, is holding pressure and there are no obvious signs of leakage. am probably losing about 1 litre per hundred k's.

Any thoughts?

If your using the red coolent, there should be signs of a leak in the engine bay or on the ground where the car is parked if it has a leak, if not, then i'd be checking the oil level of the engine for signs of water/coolent in the oil, which could be a blown head gasket.

The water has to be going somewhere, also get it pressure tested, if there is a leak this will pick it up.

Baz.

Fix a 375ml coke bottle over the overflow tube and secure the bottle with a cable tie.
It will help monitor whats getting spat out.
If it is spitting out best case senario faulty cap,worse case head gasket starting to leak.
Other than that there are 12 coolant hoses in the engine bay,I know as Ive just replaced all of mine,they are in all sorts of places and hard to spot leaks if they are leaking.
GOODLUCK
Andrew

a litre over 100k is a lot of water to loose.i find they are easier to detect 1st thing in the morning while car is cold.run finger around all ends of all hoses,& check hole on side of water pump.also have a good look over radiator after removing plastic covers

do this a couple of times with engine turtle cover off...if no luck go to plan ..b

plan b.....try container on overflow as already said....no luckgo to plan ..c

plan c.....needs to go to a landy expert

get it sorted asap as td5's do not like running low on coolant

good luck

As previously said...

a) check fuel cooler - mine had a slow leak but suddenly got a lot worse very quickly...
b) if it is spitting coolant, don't panic straight away...you said you had bled the system, perhaps needs doing again - this happened on mine and since re-bleeding it, no problem.

Cheers
Mike

sadly in my case, its also been found out that the head gasket is leaking coolant down the side of the block, behind the exhaust manifold. car runs fine and has apparently been leaking from here for some time...

Fuel cooler will leak more when it is cold, lots of places for the coolant to leak from just follow the trails, but my money is on the head gasket.
Get it checked on a rolling road it should show up very quickly.
Just been through all this with mine. Its not a cheap exercise, part of the joys of motoring.

Hi,

Its also worth checking the radiator to. They quite often leak where the core meets the endcaps, in particular low down where it corrodes nicely.